diff --git a/module/doc/model.php b/module/doc/model.php
index 4190444bf9..a6f3cc7e63 100644
--- a/module/doc/model.php
+++ b/module/doc/model.php
@@ -2907,7 +2907,7 @@ EOT;
             $moduleTree[$module->id] = $item;
         }
 
-        return $moduleTree;
+        return array_values($moduleTree);
     }
 
     /**